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WASHINGTON – Earth's first nearly full look at Mercury reveals that the tiny lifeless planet took a far greater role in shaping itself than was thought, with volcanoes spewing "mysterious dark blue material."
New images from NASA's Messenger space probe should help settle a decades-old debate about what caused parts of Mercury to be somewhat smoother than it should be. NASA released photos Wednesday, from Messenger's fly-by earlier this month, that gave the answer: Lots of volcanic activity, far more than signs from an earlier probe.
Originally posted by SEEWHATUDO
reply to post by SectionEight
ok but could it be water?
I know my CT brain is working overtime but could it be h2o filling up the craters?
[edit on 29-10-2008 by SEEWHATUDO]